Kim Kardashian West’s spokeswoman said that she was left “badly shaken but physically unharmed” after being held at gunpoint by two armed, masked men.

The culprits escaped with a ring worth about $4.5 million and a jewelry box containing other items worth $5.6 million, the judicial source said. The Associated Press also cited a Paris police official as confirming that account.

The judicial source told NBC News that five individuals dressed as police officers went to the building Sunday night.

An authoritative source with knowledge of the hotel’s security said an overnight watchman was on duty when he was overcome by armed men. They took the key to where Kardashian West was staying and ran around the building trying to find the correct apartment.

Once inside, the source said, the men tied her up and put her in the bathroom. The source added that the robbers seemed to have known that security was light on Sunday night, triggering speculation it may have been an inside job.

It’s unclear if the couple’s two children, 3-year-old daughter North and 10-month-old son Saint, were with Kardashian West at the time.

Kardashian West had traveled to France for Paris Fashion Week and attended the Givenchy show Sunday night.